Home / 9,945.28-14,874.99-5,775.40

Finding the Fourth Proportional to 9,945.28, 14,874.99 and 5,775.40

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Solution

The fourth proportional to 9,945.28, 14,874.99 and 5,775.40 is: 8,638.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945.28 : 14,874.99 = 5,775.40 : x
  2. Step 2: Convert to fraction form
    9,945.28/14,874.99 = 5,775.40/x
  3. Step 3: Cross multiply
    9,945.28x = 14,874.99 × 5,775.40
  4. Step 4: Simplify right side
    9,945.28x = 85,909,017.25
  5. Step 5: Solve for x
    x = 85,909,017.25/9,945.28
  6. Step 6: Final answer
    x = 8,638.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.